Forestry Flashcards
(36 cards)
4 characteristics of a temperate forest biome:
1) Deciduous trees
2) High levels of precipitation
3) Large wild canopy
4) Non seasonal vegetation
3 main types of agroforestry:
1) Agrisilvicultural
2) Silvopastoral
3) Agrosylvopastoral
what is Agrisilvicultural agroforestry?
A system that combines crops with trees
what is silvopastoral Agroforestry?
A system that combines forestry and grazing
what is Agrosylvopastoral agroforestry?
A system that contains all three elements: Trees, crops and animals
4 benefits of agroforestry:
1) Erosion control
2) Crop diversity (reduced risk)
3) Soil improvement (both structurally and chemically)
4) Sustained year round production
4 cons of agroforestry:
1) Fewer short term returns
2) Long term returns difficult to predict
3) Crop yield decreases if its not planned out
4) Initial expenditure is required before returns are seen.
What is the difference between softwood and hardwood?
Softwood is faster growing (less dense)
hardwood is slower growing (more dense)
What does REDD stand for?
Reducing emissions from deforestation and degradation
2 bad points about the REDD+ program:
1) REDD forest definitions can encourage plantation forestry, leading to mono-cropping and food insecurity.
2) There is a lack of environmental safeguards in place to protect affected communities and to avoid loss of biodiversity
Define what a forest is:
A forest is a community of trees, shrubs, herbs and associated organisms that cover a large area that uses gasses, water and soil nutrients as the community reproduces and becomes mature.
Which type of wood do gymnosperms usually produce?
Softwood
which type of wood do angiosperms usually produce?
Hardwood
3 different softwood trees:
1) Cedar tree
2) Douglas fir
3) Yew tree
3 Different hardwood trees:
1) Alder
2) Ash
3) walnut
whats the difference between gymnosperms and angiosperm trees?
Gymnosperms usually have seeds that are enclosed in cones whereas angiosperms don’t
what are the typical goals of woodland creation for stakeholders? (3 points)
1) renewable energy source
2) biodiversity
3) for a long term investment
what are the main climate change factors that will affect trees in the UK (5 points)
1) Hotter summers meaning a shortage of water
2) Increased risks of flooding in the winter months
3) colder winters
4) potential risks of wildfires due to heat
5) increased pest and disease problems
What are the thinning preferences for a Scots Pine plantation?
Thinned early originally and regularly from then on
Whats the main use of Scots Pine wood?
Sold as commercial timber due to its attractive yellow/red colour and outside durability. (known as ‘redwood’)
what are the 3 main threats facing UK forests in the next 30 years?
1) brexit, dont know what subsidies are going to do for farming
2) climate change
3) lack of housing for an ever growing population
what does the REDD+ program do?
Gives people money rewards for protecting their forests or from stopping them from degrading.
REDD+ schemes include
1) Payments for Environmental Services (PES)
2) Integrated Conservation Development Projects (ICDPs)
3) Social Forestry
4) Participatory Forest Management
What rotational period do Scots Pines suit?
70-90 years